Looking at the TOC for the Camel, I think most of the hard work is done. By the time Larry does Apocalypse 8 ( references ), most of the language design will be done and work can begin in earnest on actually coding the language.
Of course, Apocalypse 7 ( Formats ) should be very short -- something along the lines of "They're dead, Jim".

So, we have 2 more hard ones to go. Figure 6 months for those. Frankly, I would guess they are gonna work real hard to get it ready for the Perl Conference in 2003, but I don't know the date of it. So, I will guess 2003-08-15

This may represent a reason to purchase a copy of the book - follow the perl6 development schedule. Seriously - I've only ever borrowed someone's Camel book for half an hour and now I just don't know what it's good for (since I'm now into learning perlguts n' stuff). So finally a use! ;-)